WO2018182319A2 - 필터조립체 - Google Patents

필터조립체 Download PDF

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Publication number
WO2018182319A2
WO2018182319A2 PCT/KR2018/003684 KR2018003684W WO2018182319A2 WO 2018182319 A2 WO2018182319 A2 WO 2018182319A2 KR 2018003684 W KR2018003684 W KR 2018003684W WO 2018182319 A2 WO2018182319 A2 WO 2018182319A2
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WO
WIPO (PCT)
Prior art keywords
pipe
fluid
filter
upstream end
upstream
Prior art date
Application number
PCT/KR2018/003684
Other languages
English (en)
French (fr)
Korean (ko)
Other versions
WO2018182319A3 (ko
Inventor
오순봉
Original Assignee
주식회사 에이런
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 에이런 filed Critical 주식회사 에이런
Priority to CN201880019203.1A priority Critical patent/CN110446540A/zh
Priority to US16/498,055 priority patent/US20210113951A1/en
Priority to CA3054545A priority patent/CA3054545A1/en
Priority to EP18776966.6A priority patent/EP3578243A4/en
Publication of WO2018182319A2 publication Critical patent/WO2018182319A2/ko
Publication of WO2018182319A3 publication Critical patent/WO2018182319A3/ko

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/085—Funnel filters; Holders therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/661—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps by using gas-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • B01D35/306—Filter mounting adapter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/10—Filter screens essentially made of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0005—Mounting of filtering elements within casings, housings or frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/02—Filtering elements having a conical form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B01D2201/0415—Details of supporting structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/18—Filters characterised by the openings or pores
    • B01D2201/184—Special form, dimension of the openings, pores of the filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/282—Filtering elements with a horizontal rotation or symmetry axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1216—Pore size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20—Shape of filtering material
    • B01D2275/201—Conical shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/30—Porosity of filtering material
    • B01D2275/305—Porosity decreasing in flow direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/30—Porosity of filtering material
    • B01D2275/307—Porosity increasing in flow direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2027—Metallic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0017—Filter elements installed in a branch of a pipe, e.g. with an y-shaped tubular housing

Definitions

  • the present invention relates to a filter assembly for filtering solids such as microparticles or microorganisms, and more particularly to a filter assembly having a filter hole that is not blocked by solids.
  • the filter functions to filter the foreign matter contained in the flowing fluid by interposing the plate formed with the plate into a plate or a tubular shape and interposed in the tubular portion in which the fluid flows.
  • a filter for preventing such clogging is disclosed in Korean Patent Laid-Open No. 10-2006-0037051.
  • the disclosed filter includes a cylindrical support frame having an opening formed at a side thereof, and a plurality of thin plates surrounding the sides of the supporting frame and overlapping each other, wherein the microplates are formed with a plurality of micropores, and the micropores are centrally located in the thickness direction. It has a minimum diameter, and grooves are formed to connect the micropores on the surface opposite to the support frame side of the thin plate to increase the filtration efficiency.
  • the microvoids formed in the filter are opened in parallel to the conveying direction of the fluid, and the inner wall of the groove portion defining the microvoid is enlarged, reduced in diameter, and enlarged in an hourglass shape, and thus the groove inner wall
  • the filter described above has the problem that the micropores should be backwashed by pulsed air in a state in which foreign matter is frequently stuck to the filter and frequently stops the filtration process.
  • the disclosed filter has the problem that foreign matters stuck to the groove inner wall located at the upstream end in the filtration direction are not separated from the groove inner wall by the backwash.
  • the present invention has a problem in solving the above problems.
  • the present invention provides a plurality of openings, which are tapered micropores, which are opened in their thickness direction in a state in which they are horizontally or inclined with respect to the flow direction of a fluid containing solid foreign matter and are narrowed in size from an upstream end to a downstream end. It is possible to distribute the provided filter to an upstream end of the branch pipe interposed with the flow pipe in which the fluid containing the foreign matter flows to form a filtration flow path passing through the filter and a non-filtration flow path not passing through the filter. The problem can be solved by providing a filter assembly that is easily mounted.
  • the fluid containing the foreign matter is divided into the filtration fluid and the non-filtration fluid by the filter, so that the upstream exposed surface of the foreign matter caught in the opening is more contacted with the upstream exposed surface. And flows faster at the upstream exposed surface than at the downstream exposed surface, so that lift force based on Bernoulli's principle is generated with respect to the foreign matter caught in the opening, so that the foreign matter caught in the opening is separated from the opening, thereby filtering the fluid. Even if the operation is performed for a long time, the opening formed in the filter is not blocked, thereby providing an effect of continuously performing the filtration process without replacing the filter or cleaning the filter.
  • FIG. 1 is a perspective view of the coupling assembly for an embodiment of the filter assembly according to the present invention.
  • FIG. 2 is an exploded perspective view of the filter assembly of FIG.
  • FIG. 3 is a conceptual diagram illustrating a filtration device to which the filter assembly of FIG. 1 is applied.
  • 4 to 8 are conceptual views illustrating other embodiments of the filter assembly of FIG.
  • FIG. 9 is a conceptual diagram illustrating still another embodiment of the filter assembly of FIG. 1 and the filtration device of FIG.
  • FIG. 10 is a conceptual diagram illustrating another embodiment of the filter assembly of FIG. 1;
  • 11 to 12 are conceptual views illustrating yet another embodiment of the filter assembly of FIG. 1, and
  • FIG. 13 is a conceptual view showing another embodiment of the filtration device of FIG.
  • FIG 1 a filter assembly of one embodiment according to the invention is indicated by reference numeral 100.
  • the distribution pipe 10 is interposed to flow in the middle of the unshown transfer pipe to which the fluid containing the solid foreign matter is transported in the middle of the distribution pipe (10) It has a size smaller than the size of the distribution pipe 10 to form two flow paths in the distribution pipe 10 in cooperation with the distribution pipe 10, the upstream end is disposed in the distribution pipe 10 and the downstream end is the distribution pipe 10 ) Upstream of the distribution pipe 10 at an upstream end of the branch pipe 20 interposed therebetween in the form of a pitot tube, the branch pipe 20 disposed in the distribution pipe 10.
  • a filter unit 30 extending obliquely with respect to the fluid flow direction in the filter and connected to the downstream end of the distribution pipe 10 and the upstream end of the branch pipe 20, and the branch pipe disposed outside the distribution pipe 10 (
  • the first valve 40 interposed in the downstream end of 20, upstream than the first valve 40
  • a gas supply pipe 50 connected downstream of the downstream end of the branch pipe 20 in the flow path and upstream of the gas supply source connected to a gas supply source (not shown), and interposed in the middle of the gas supply pipe 50.
  • the second valve 60 is included.
  • the branch pipe 20 may flow in an upstream end of the distribution pipe 10 to form a fluid flow path containing foreign matter that has not passed through the filter part 30 and a fluid flow path through which the foreign matter is filtered. It has a shape.
  • the filter part 30 is formed by forming a plurality of micropores 31 in a grid pattern with an interval of 1 ⁇ m or less, for example, by bending a metal plate into a conical shape or by injection molding of a resin material.
  • a hollow conical filter 32 having a tip portion disposed upstream in the fluid flow direction, a plurality of flesh 33 fixedly inscribed to the conical filter 32 to support the conical filter 32, and the plurality of flesh
  • the base end of (33) is fixed to an upstream end, and includes the connector 34 connected to the upstream end of the said branch pipe 20 so that a downstream end may flow.
  • the plurality of microvoids 31 formed in the filter 32 have a tapered shape that opens in the thickness direction of the filter 32 and narrows in size from the upstream end to the downstream end.
  • the upstream end size of each of the micropores 31 is, for example, 10 to 100 ⁇ m, and the downstream end size is, for example, 1 to 10 ⁇ m.
  • the ratio of the proximal end size of the conical filter 32 to the length of the conical filter 32 in the flow direction is, for example, 1: 2.
  • the filter 32 may be made of a nickel alloy material having excellent chemical resistance in the case of a metal, and in order to increase the resistance, the tungsten alloy may be electrolessly plated on the nickel alloy metal filter 32 in an electroless plating manner. It may be plated to a thickness of ⁇ 5 ⁇ m, and may be made of a resin material such as PP, PE, and PC having chemical resistance and durability.
  • the flow pipe 10 and the branch pipe 20 may be plated with a tungsten alloy 10 ⁇ 40 ⁇ m thickness by an electroless plating method to increase the corrosion resistance.
  • the filter assembly 100 configured as described above may be applied to the filtration device 200, as shown in FIG.
  • the filtration apparatus 200 is connected to the lower end of the fluid storage tank 210 in which the upstream end is storing fluid and the circulation line 220 is connected downstream in the upper part of the fluid storage tank 210.
  • the pump 230 and the distribution pipe 10 of the filter assembly 100 and the downstream end of the branch pipe 20 of the filter assembly 100 are sequentially shown in the flow direction of the fluid.
  • an unshown gas supply source connected to an upstream end of the gas supply pipe 50 of the filter assembly 100.
  • the filtration device 200 to which the filter assembly 100 configured as described above is applied may be operated as follows.
  • the pump 230 when the pump 230 is operated in the state in which the first valve 40 is opened and the second valve 60 is closed, the fluid containing solid foreign matter is discharged from the fluid storage tank 210. 10.
  • the through fluid penetrating the upstream end of the filter unit 30 and facing the filter unit 30 and penetrating the plurality of micropores 31 of the filter unit 30 among the fluid transferred toward the filter unit 30 is A fluid that is transferred to the downstream end of the branch pipe 20 of the filter assembly 100 and is stored in the filtration fluid storage tank as filtered filtration fluid, for example, 10 ⁇ m or more of solid foreign matter, and is transferred to the filter part 30.
  • the non-penetrating fluid that does not penetrate the plurality of micropores 31 of the filter unit 30 is a fluid containing solid foreign matter of 10 ⁇ m or more and is downstream of the distribution pipe 10 and downstream of the circulation line 220.
  • the fluid stored in the fluid storage tank 210 is supplied to the filtration fluid storage tank as a filtration fluid in which solid foreign substances of 10 ⁇ m or more are filtered.
  • the first valve 40 is closed and the second valve is closed.
  • opening 60 for example, a gas such as helium, which is lighter than air, penetrates the filter unit 30 backward through the gas supply pipe 50 and enters an upstream end of the distribution pipe 10.
  • the filter unit 30 may be backwashed, so that the filter assembly 100 may provide an effect of continuously performing the filtration process without filter replacement or filter cleaning.
  • the filter 32 of the filter unit 30 has a conical shape, collision between the fluid containing the solid foreign matter and the filter 32 is minimized, so that the flow of the fluid containing the solid foreign matter is stably maintained. Can be.
  • ballast water When the downstream end sizes of the plurality of micropores 31 become 3 ⁇ m, drinking water (water not contaminated with chemicals on the ground) may be produced, and when the size becomes 10 to 50 ⁇ m, ballast water may be produced.
  • the filter assembly 100 and the filtration device 200 having the same may be applied to a wastewater treatment process, a semiconductor process, and other particle size separation processes.
  • a venturi tube 250 may be interposed between the pump 230 and the distribution pipe 10.
  • the venturi tube 250 When the venturi tube 250 is interposed between the pump 230 and the distribution pipe 10, the flow rate of the fluid containing the solid foreign matter discharged from the pump 230 passes through the venturi tube 250 more rapidly. It is accelerated so as to flow to the outer surface of the filter 32 to generate a greater lift force in the plurality of micro-pores so that foreign matter trapped in the plurality of micro-pores is more reliably separated from the plurality of micro-pores, It is preferable that the plurality of micropores 31 formed in the filter part 30 are not further clogged.
  • the third valve 221 is disposed in the middle of the circulation line 220 located downstream from the distribution pipe 10.
  • a fourth valve 251 is provided at a first inlet of the venturi tube 250 connected to the discharge side of the pump 230, and a second inlet of the venturi tube 250 into which outside air is introduced by negative pressure. If the fifth valve 252 is provided, it is preferable from the viewpoint of adjusting the amount of lifting force generated in the plurality of micropores by adjusting the opening degree of the first, third, fourth and fifth valves.
  • the filter unit 30 of the filter assembly 100 is described as being conical in the above embodiment, the present invention is not limited thereto, and as another embodiment, as shown in FIG. As shown in FIG. 5, it may be a tubular shape having a plurality of micropores 31 formed around it, and as shown in FIG. 6, a conical part and a tubular part may be combined. It may be.
  • the branch pipe 20 is in the form of a pitot tube (pitot tube) in the embodiment in the embodiment, the upstream end of the branch pipe 20 is parallel to the flow direction of the fluid in the flow pipe (10) Although it is described as being connected in such a way as to extend, the present invention is not limited thereto, and as another embodiment, as shown in FIG. 7, the upstream end of the branch pipe 20 is the distribution pipe 10.
  • the filter 32 of the filter portion 30 is in the form of a plate so that the filter 32 is inclined in the flow direction of the fluid in the upstream end of the branch pipe (20) It may be mounted.
  • the filter 32 in the state in which the downstream end of the branch pipe 20 extends perpendicular to the flow direction of the fluid flow in the flow pipe 10, the filter 32 may be plate-shaped so that the filter 32 may be mounted upstream of the branch pipe 20 in parallel with the flow direction of the fluid.
  • the branch pipe 20 is connected in the form of an L-shaped pitot tube in the middle of the distribution pipe 10 in the filter assembly 100 of the embodiment, but the present invention is not limited thereto.
  • the branch tube 20 ′ in the form of a straight tube may be replaced by the branch tube 20 ′ instead of the branch tube 20 in the form of an L-shaped pitot tube, in which case the branch tube 20 ′ is used.
  • a downstream end of the branch pipe 20 ' which is upstream of the outlet pipe is inserted into the distribution pipe 10 and connected to the filtration fluid reservoir (not shown), is disposed outside the distribution pipe 10, and the branch pipe Downstream of the gas supply pipe 50 at a downstream end portion of the branch pipe 20 'that is upstream from the first valve 40 in a state where the first valve 40 is downstream of the 20'.
  • a stage is connected to the distributor and an upstream distributor is supplied to the gas supply source not shown.
  • a second valve 60 may be interposed in the middle of the gas supply pipe 50.
  • the conical-shaped metal filter part 30 is directly connected to the upstream end of the branch pipe 20, but the present invention is not limited thereto, and as another embodiment 9, in order to minimize the flow resistance of the fluid, the upstream end of the branch pipe 20 ′ becomes a reduction tube 20a in which the size decreases toward the downstream end of the conical shape of the metal filter part. 30 may be connected in circulation.
  • the circulation pipe 10 of the pump 230 and the filter assembly 100 are sequentially connected in the flow direction of the fluid during the circulation line 220.
  • the circulation line 220 located downstream from the distribution pipe 10 to adjust the flow rate and pressure of the filtration fluid discharged through the first valve 40.
  • the third valve 221 may be interposed in the middle of the site.
  • the distribution pipe 10 is interposed between one branch pipe 20 in the form of a L-shaped pitot tube in the middle of the distribution pipe 10 while having the same size over the entire length.
  • the conical filter 32 is mounted at an upstream end of the one branch pipe 20 in the state, the present invention is not limited thereto, and as shown in FIG. 10, the distribution pipe 10 is upstream.
  • the plurality of branch pipes 20 are interposed between the plurality of partial flow pipes in a state where the downstream side is connected with a plurality of partial flow pipes having a smaller size, and the plurality of branch pipes 20 and the plurality of branch pipes ( A plurality of conical filters 32 mounted upstream of each of the upstream ends of 20) flows in the upstream ends of the plurality of distribution pipes 10 and contains a fluid flow path containing foreign substances that do not penetrate the plurality of conical filters 32; bow It has a size and shape capable of forming the flow path for filtered fluid.
  • the filter assembly of the embodiment of FIG. 10 is preferable in view of being able to stably maintain a constant flow rate over the entire length of the distribution pipe because the filtration fluid is drawn out of the branch pipe.
  • the particles in the fluid may be separated and discharged by size.
  • the upstream end has a tapered shape that becomes narrower from the upstream end to the downstream end.
  • a stage is fixed to the distribution pipe 10 and a downstream end is fixed to an upstream end of the branch pipe 20 so that a plurality of micropores 31 may be formed on the circumferential surface.
  • the distribution pipe In the case where the downstream end of 10) is bent, the branch pipe 20 is not interposed in the form of an L-shaped pitot tube in the middle of the distribution pipe 10, and as shown in FIG.
  • the branch pipe 20 ' may be a downstream portion of the branch pipe 20' through the bent portion of the distribution pipe 10 may be penetrated.
  • the filter assembly may include a filter.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Materials (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
PCT/KR2018/003684 2017-03-30 2018-03-29 필터조립체 WO2018182319A2 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201880019203.1A CN110446540A (zh) 2017-03-30 2018-03-29 过滤器组件
US16/498,055 US20210113951A1 (en) 2017-03-30 2018-03-29 Filter assembly
CA3054545A CA3054545A1 (en) 2017-03-30 2018-03-29 Filter assembly
EP18776966.6A EP3578243A4 (en) 2017-03-30 2018-03-29 FILTER ARRANGEMENT

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0040724 2017-03-30
KR1020170040724A KR101893580B1 (ko) 2017-03-30 2017-03-30 필터조립체

Publications (2)

Publication Number Publication Date
WO2018182319A2 true WO2018182319A2 (ko) 2018-10-04
WO2018182319A3 WO2018182319A3 (ko) 2018-12-20

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PCT/KR2018/003684 WO2018182319A2 (ko) 2017-03-30 2018-03-29 필터조립체

Country Status (6)

Country Link
US (1) US20210113951A1 (zh)
EP (1) EP3578243A4 (zh)
KR (1) KR101893580B1 (zh)
CN (1) CN110446540A (zh)
CA (1) CA3054545A1 (zh)
WO (1) WO2018182319A2 (zh)

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KR20210055984A (ko) * 2019-11-08 2021-05-18 삼성전자주식회사 환기장치 및 이를 포함하는 공기조화기
KR102357909B1 (ko) * 2019-11-28 2022-02-03 한국가스공사 펌프용 필터
US11938437B2 (en) * 2021-02-04 2024-03-26 Transportation Ip Holdings, Llc Filter system and method

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